If you’ve got a few million dollars, you can buy the world’s safest home. But for the rest of us, these 7 home security tips help us sleep at night.

For just $5.9 million, you could be the next owner of the world’s safest house — an 11,000-sq.-ft. home in the Hollywood Hills area of Los Angeles. It features two panic rooms, two bedrooms that can be sealed off from the rest of the house, and a heliport on the roof.

Home security system installation and monitoring costs vary a lot from company to company, so to make a smart choice, get quotes from a local and a national company and consider DIY options, too.

A home security camera gives you peace of mind while you’re away from home and costs. Add a web cam and remote access to your computer for about $30 and you can go online to see what’s going on when you’re not home.

A home office security check tells you if you’re at risk of losing vital documents, business equipment, or pricey office equipment.

Get protection when it counts: build a tornado storm shelter or safe room in your home for around $3,500.

has been writing about real estate for more than two decades. She lives in a suburban Baltimore Midcentury modest home on a 3-acre lot shared with possums, raccoons, foxes, a herd of deer, and her blue-tick hound. Follow Dona on Google+.